Gas-generator.



R. VON FOREGGER.

GAS GENERATOR.

APPLICATION FILED JAN. 30, 1908.

NETE@ STATES PA'iTEN T OFFQE.

RICHARD VON FOREGGER, OF BENSOHURST, NEW YORK, ASSIGNOR TO THE ROESSLER & HASSLACHER CHEMICAL COMPANY, Ol" NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GASGENERATOR.

Specification o1. Lettera Patent.

Patented March 23, 1909.

. following 1s a specification.

nof water level is required.

My invention relates to an apparatus for the generating of gas under pressure having particular relation to such generation of oxygen gas.

Oxygen gas under 'pressure lor example is t0 be had in three ways.

First, the ordinary cylinders into which oxygen is charged by" the mamilacturers ot same for storage under high pressure, in which form it :is sold to the'user. ln the above described form it is impractical as for.

use the pressure of several hundred pounds has to be reduced to a working pressure to insure uniforln working'. Furthermore it is vnot economical on account of losses which are unavoidable with high pressure. It is also dangerous, being subject to explosion under certain circumstances. It is also clumsy and bulky in form and not convenient for handling and transporting.

. Secondly, the oxygen is `generated by a purely chemical process and is stored in al gasometer where it is put under pressure ready for use. Such apparatus is constructed in the form of a stationary plant and has in connection therewith an extensive tube arrangement so that the gases may be trans ferred to any suitable place where needed. It is evident that in such installations sonic inconveniences are attached; that is, space is required for the installation of tubos, etc.

Thirdly, oxygen is produced from sodium peroxid in its fused or compressed form by ringing water in contact therewith. The container in connection is suitably elevated permittingl the obtaining of' gas under pressure. However, to obtain the pressure most commonly used for blow pipes, etc., which is 15 pounds, about 30 feet dillerencc Such heights make the use of such a generator in many ways impossible and as the apparatus con-4 sists of two containers or more connected either by a rigid pipe or by means of a ilexiblo rubber tube, it can hardly bc considered as portable.

My invention overcomes thc objectionable features described and provides a means for producing the under any desirable pressure. vFor example, from one-half pound to thirty pounds and il' necessary the appara? tusl can be so constructed as to generate a still higher degree of pressure which apparatus is at the saine time very handy and easy to handle and transport.

'Vo accomplish the above result l have constructed a generator, one lorm ol which is shown in the drawing, in which ,the ligure illustrates the apparatusin vertical sectional view.

l imlicatcs an outer container adapted to contain water. 2 designates a cover hermeticaliy sealed vto said container l by any suitable means.

3% is an inner' container in its form an inverted bell, provided with an open end 4 at its lower end and adapted to have mounted therein a cylinder' 5, said cylinder 5 havin in turn mounted therein a perforated meta sheet 6, Cylinder may be held in position in inner container 3 by means of extensions or rods 7 in the lower ends of said cylinder 5 )assing through the walls of container 3.` llfhe upper end of inner container 3 ends in a neck portion 8 which has mounted at its upper end a needle valve 9. Neck S communicates with the inner part of inner container 3. 'A tube 10 connects the outer container and neck S at a point intermediate valve 9 and cover 2 forming thus a communi-i cation between thc inner and outer containers. Tube 10 carries a needle valve 11 and may have an enlarged portion at its base above cover 2, forming a chanTV er for a suitable prcssure valve 12. Cover also carries a safety valve 13, which serves to permit the gas to escape when the pressure is too great or the gas may escape by pulling up button 17. Another opening in cover 2 provides for the pressure gage 14. I

15 indicates rubber gaskets between the edge of the cover and upper rim-of outer critainer 1, to make the container.airtight and assist in herinetically sealing the same. The cover is held tightly to the container by any suitable means as by screws or a suitable' bottom.

spring lever (not shown). Near the bottom of the outer container is an opening which is closed by4 screw cover 16;-

The ressure valve l2 in chamber 23 is control ed by a spring 24 fastened to stud 25. The spring may be made adjustable so that -the valve i2 will operate to open or close ata With the inner container' as shown is hermetically sealed to the outer container'. The needle valves 9 and il are both closed. The ressure at this time inthe generator Will e the ordinary atmospheric pressure. The Water level in the inner container will only be a-.triile above the lower end of saine, and therefore notin contact With the chemical.

The operation of the generator has two functions, the production of pressure and the yield of gas under-pressure. in order to obtain the desired pressureneedle valve li is o ened. The consequence is that on account ci) the difference of Water level in the outer and inner containers, free passage el air now being permitted,but only Within the apparatus-the Water leveL in the inner container will rise and the Water will come into contact with the chemical, resulting in the generation of gas. As the gas cannot escape from the apparatus, needlevalve 9 still bein closed, it Will'pass through tube l() and e compressed anda difference of Water level still prevailing, a continuous contact of Water and chemical is insured. W hen the desired pressure indicated by the pressure gage is obtained, needle valve 11 may be closed. This is, however, not essential, as the function of pressure valve 12 is to close tube 1dl and shut 0H communication between the inner vand outer containers as soon as the pressure reaches the point to which valve l2 1s adjusted. With the proper pressure available the generator is ready for use the needle valve 9. can be opened for passage of the gas forA Whatever purpose desired. With the opening of needle valve 9 conditions are again given to allow the contact of Water and chemical, thus providing lfor a continuous generation of gas, which, with proper adjustment as set forth, will maintain an even pressure. Should the supply of gas desired e large it is advisable to operate with the needle valve 1l open. The pressure valve @meer l2 which, With pressure at the desired point closes, will, as soon as the pressure goes beloW the point, open. The result will be that besides the dischars'e to the outside the inner circulation of takes place, securin quicker reaction and more generation .of gas until, when the desired pressure is obtained, pressure valve l2 closes up again.

he principle ci my invention is thus: The creation of an inner circulation of the gas or an internal discharge, in order to produce pressure. The gas therefore produces its own pressure. This simple auto-generation of gas pressure Works up to any amount oi pressure within required lirnits, Ythus doing away with all unnecessary mechanical means ot crsnpressing the gas, or, il' the gas has lbeen compressed, reducing it again to Working pressure.

lt is obvious that the details of the apparatus described y he desiv'ned in different for and Ways Without departing from the spirit of the invention. l do not restrict .iuyself, therefore, to the design shown, but desire to claim broadly pressure generator automatically generating thepressurc bythe action of an inner circulation or an inner discharge apart from the discharge for the gas consumed rl/nat l claim and desire to secure by Let- P is":

' en apparatus lor generating gas under er container, an inner container Within said outer container and sealed therefrom, Generating ineens Within said inner con tzr-incr, a discharge connection from said inner container, a valve controlling said discharge, a oy-pass frorn said discharge to said outer container .intermediate said valve and said inner container, and a valve controlling said by-pass.

2. An apparatus y,for generatinggas under pressure comprising an hermetically se'aled outer' container, an inner container within said outer container-and sealed therefrom, gas generating ineans within said inner container, a discharge connection from said inner container, a valve controlling said discharge, a lay-pass from said discharge to said outer container intermediate said valve and said inner container, an automatically con troilable means lor opening Aand closing the connect-ion between said b y-pass. and the outer container.

3. An imparatus for generating gas under pressure comprising an hermetically sealed outer container, an inner container Within said outer container and sealed therefrom, gas 'generating means Within said inner container, a dischargeconnection from said inner container', a valve controlling said discharge, a icy-pass from-.said discharge to said 'outer container 'interniediate said valve and said rising an herrnetically sealed4 inner container, a valve controlling said lby signed iny name 1n the pass and automatically controllable means scrib mtermediate saidlast named valve and the 1|" outer containei` for opening and closing the 5 connection between said by-pass and said outer container when said valve is open. In testimony whereof I have hereunto ing wfvki'tnesfsee.v y l RICHARD VON FoREGGERf SEABUBY C. MABTIoKf K. G: LEARD.

presence of two silb- 

